Visit Our UNIX and Linux User Community

Extracting columns

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Extracting columns
# 8  
Old 10-07-2009
Hi, Perhaps it is good to note that the OP does seem to want a space between the two fields.
# 9  
Old 10-07-2009
did not really work

Hi guys,

Sorry for the late reply,was a bit busy with certain things...

No the commands didn't give me the expected results. I am using centos 5.3. I am using putty to login to the remote server.
Still i am not getting the first two columns in exactly the same format as given by the command: yum -e0 -d0 check-update
# 10  
Old 10-07-2009
OK, I see, you would like to keep the exact same spacing that yum spits out. In that case we should cut of everything after the second field, e.g. like so:

yum -e0 -d0 check-update | sed 's/[\t ]*[^\t ]*$//'

# 11  
Old 10-07-2009
No result

But even after using the recommended command i am getting the same three columns as output, while i want the first two columns in the same format.
# 12  
Old 10-07-2009
yum -e0 -d0 check-update| gawk '{print $1 $2}'

# 13  
Old 10-07-2009
Already tried that

I have already tried the command earlier but to no avail. The output that i am getting is:


Last edited by vgersh99; 10-07-2009 at 12:13 PM.. Reason: code tags, PLEASE!
# 14  
Old 10-07-2009
Plz consult the attached picture. I want the output in exactly the same format(without the blue background)
Extracting columns-yum-outputjpg

Previous Thread | Next Thread
Test Your Knowledge in Computers #1000
Difficulty: Medium
Trusted Computer System Evaluation Criteria (TCSEC) is frequently referred to as the Red Book.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Extracting multiple columns with awk

Hi everyone!! I need to apply a simple command to extract columns from a matrix, but I need to extract contemporary from the first to the tenth columns, than from the eleventh to the twentyth and so on... how can i do that? (1 Reply)
Discussion started by: gabrysfe
1 Replies

2. Shell Programming and Scripting

Extracting wanted columns

Suppose file1 1 3 8 9 file2 1 2 3 4 5 6 7 8 9 10 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 I want to print columns listed in file 1 from file2. so the output will look like 1 3 8 9 1 1 0 1 (3 Replies)
Discussion started by: johnkim0806
3 Replies

3. UNIX Desktop Questions & Answers

Extracting only unique data between two columns

:wall:Hi there, I am trying to extract/filter a unique data between specific columns from a tab deliminated file, that has a number of columns: input file as follow: 5 rs1 70 A C 7 1 1 Blue 5 rs9 66 A E ... (2 Replies)
Discussion started by: houkto
2 Replies

4. Shell Programming and Scripting

Using columns from 2 files and extracting string

Hi All, I have 2 files with a common column. File 1 looks like NAME START POS1 POS2 N1 1234 1236 1237 N2 1245 1248 1250 .. .. File 2 looks like NAME STRING N1 ABCDEFGH N2 EFGHBCD N3 PQRSSTUV .. ...... ... (25 Replies)
Discussion started by: alpesh
25 Replies

5. Shell Programming and Scripting

extracting columns from 2 files

Hello, I have 2 files file1 & file2 = a1 b1 a2 b2 a3 b3 ... = c1 d1 c2 d2 c3 d3 ... I need to compare if b(i)=c(j) . i,j=1,2,3,4,... If yes, right a(i) d(j) in output file3 per line (1 Reply)
Discussion started by: newpromo
1 Replies

6. Shell Programming and Scripting

Extracting only a few columns!!!?

Hi All, I have a text file which looks like below. ################################################ Name:xxxxxxx Version:1.0 Class: 2 City : Bangalore Component Part Action Nb New Part Naming Part Name 12345 default 12345.12345 Bad 23456 ... (6 Replies)
Discussion started by: smarty86
6 Replies

7. Shell Programming and Scripting

extracting columns with awk

Friends, I have a file with fileds in the following order sda 4.80 114.12 128.69 978424 1103384 sdb 0.03 0.40 0.00 3431 0 sda 1.00 0.00 88.00 0 176 sdb ... (14 Replies)
Discussion started by: achak01
14 Replies

8. Shell Programming and Scripting

extracting multiple consecutive columns using awk

Hello, I have a matrix 200*10,000 and I need to extract the columns between 40 and 77. I dont want to write in awk all the columns. eg: awk '{print $40, $41, $42,$43 ... $77}'. I think should exist a better way to do this. (10 Replies)
Discussion started by: auratus42
10 Replies

9. Shell Programming and Scripting

Need help in extracting columns

Hi , I have a file having around 8 columns spereated by space . Now that I need to extract columns from this. The problem is this functionality is needed in a script and the required columns are dynamic and can range from 2 columns to 8 columns at a time . What I tried without luck is ... (6 Replies)
Discussion started by: praveenbvarrier
6 Replies

10. UNIX for Dummies Questions & Answers

Extracting columns from different files for later merging

Hello! I wan't to extract columns from two files and later combine them for plotting with gnuplot. If the files file1 and file2 look like: fiile1: a, 0.62,x b, 0.61,x file2: a, 0.43,x b, 0,49,x The desired output is a 0.62 0.62 b 0.61 0.49 Thank you in advance! (2 Replies)
Discussion started by: kingkong
2 Replies

Featured Tech Videos